Morphology and Rheology in Blends in of Pet with Ionomeric Polyester
The morphology and the rheology in blends of polyethylene terephathalate (PET) with Ionomeric Polyester were investigated over a wide range of different blending ratios. The ionomeric polyester is derived from PET modified through copolycondensation with sulfonate moiety, sodiosulfo isophthalate (Na- SIP), iso-phthalic acid (IPA) and polyethylene glycol (PEG). The results showed that the apparent viscosity and non-newtonian index of the PET/ionomeric polyester blend system had the non-linearity change with the change of the blend ratio of PET/ionomeric polyester. The anomaly of the viscous flow activation energy change was found as the content of ionomeric polyester was about 40％ (w/w) in the blend system, suggesting the pressence of physical crosslinked structure formed by strong polar tangling points and the phase separation owing to poor compatibility between the PET and ionomeric polyester. The morphology and thermal behavior of the blends were observed respectively with differential scanning calorimetry (DSC) and atomic force microscope (AFM).
PET ionomeric polyester rheological blend morphology
GUO Xianying GU Lixia
Chemical Engineering College of Qingdao University, Qingdao 266071,P. R. China The State Key Laboratory for Modification of chemical fiber Donghua University, Shanghai 201620, P.
国际会议
上海
英文
138-141
2007-10-15（万方平台首次上网日期，不代表论文的发表时间）